|Table of Contents|

Ecological highway route selection of Karst area based on RS-GIS(PDF)

长安大学学报（自然科学版）[ISSN:1006-6977/CN:61-1281/TN]

Issue:
2013年02期
Page:
1-9
Research Field:
道路工程
Publishing date:

Info

Title:
Ecological highway route selection of Karst area based on RS-GIS
Author(s):
XU Jin-liang;  TIAN Lin;  NIU Dong-yu
Key Laboratory for Special Area Highway Engineering of the Ministry of Education, Chang'an University, Xi'an 710064, Shaanxi, China
Keywords:
road engineering;  Karst area;  ecological background;  RS;  GIS;  eco-route selection
PACS:
U412.243
DOI:
-
Abstract:
Karst area Landsat5 satellite TM images were used as information source, RS technology was used to extract vegetation coverage, soil erosion and land use type for the evaluation of ecological background condition, and the ArcGIS software was utilized to extract indices of terrain slope and water environment. Based on the indicators above, with GIS analysis techniques, comprehensive evaluation and analysis of the ecological background of the Karst areas were conducted. Karst ecological background conditions could be classified as excellent, good, fair, poor and very poor level. Based on the overall distribution and evaluation results, route corridors with relatively small impact on the environment, were identified the highway CAD software was used to design some feasible routes, and possible route options were compared to ultimately determine the best route with environmental coordination. The results show that the method overcomes the limiations of the traditional route selection method which is too dependent on designers experience and subjective judgment, and also improves the scientificity of design planning. 9 tabs, 14 figs, 12 refs.

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Last Update: 2013-04-20